<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="style.css" />
    <title>Document</title>
  </head>
  <body>
    <main>
      <div class="slider">
        <!-- 显示选择的数值容器 -->
        <span class="selected">
          50
        </span>
        <!-- 滑动选择器 -->
        <input type="range" id="slider-input" min="0" max="500" value="50" />
      </div>
    </main>
    <script src="index.js"></script>
  </body>
</html>
